Conveyer flight



R. H. PANGBORN' CONVEYER FLIGHT Filed April 28, 1924 r u I v :2: 176 4INVENTOR Rcomno H Pn'neaonn.

Patented Aug. 21, 1928 UNITED STATES REDMOND H. I'ANGBORN, OF TACOMA,WASHINGTON.

CONVEYER rme rr.

Application filed April 28, 1924. Serial No. 709,420.

This invention relates to improvements in conveyers, and moreparticularly to a conveyer flight, designed primarily for a saw millslab conveyer but which is also readily applicable to chain, or cable,conveyors as are used in mines, elevators, dredges or for varione otherpurposes.

Heretofore, it has been common practice to fasten the flightspermanently to the conveyer chain by riveting or welding, but thismethod has proven to be very impractical, expensive and undesirable forthe reason that should any flight be damaged so that its removal fromthe chain becomes necessary, the entire conveyer system had to bestopped while the damaged flight was removed and replaced, which due tothe method of attaching by riveting or other ermanent connections,required considera 1e time and incurred considerable expense. I

In view of the undesirability of thus attaching the flights, it has beenthe principal object of this invention to provide a flight of durableand substantial construction adapt- 2 ed for removable connection with aconveyer chain; the construction being such that the connection may bemade in a rigid and substantial manner through the agency of inter-"locking parts held together by a single bolt.

More specifically stated, the invention resides in the provision of aconveyer flight consisting ofan angle iron bar equipped centrally with atransverse flange to which a link ofa conveyer chain may bedisconnectably and ri idly attached. And furthermore to provide teattaching link with an opening at one side which permits it to bereadily attached to or released from the flight connecting sections of aconveyer chain.

Other objects reside in the various details of construction andcombination of parts hereinafter described.

In accomplishing these and other objects of the invention, I haveprovided the improved details of construction, the preferred forms ofwhich are illustrated in the accompanying drawings, wherein- Figure 1 isa perspective view of a. conveyer flight embodied by the presentinvention; showing its attaching link an'd plate in disconnectedrelationfor better illustration.

Figure 2 is a similar view, showing the assembled relation of the linkand flight.

Figure 3 is a perspective view of the parts assembled and securedtogether.

Figure 4 is a plan view of the flight connected in a conveyer chain.

Figure 5 is a transverse, sectional view taken on the line 5 5 in Figure4.

v Figure 6 is a sectional view taken on the line 6-6 in Figure 4.

Figure 7 is a perspective .VlGW of the attaching link, showing the sideopposite that shown in Figures 1 and 2..

Referring more in detail to the several views of the drawings-- 1designates, as a whole, the conveyer flight and 2 and 3 sections of achain whereby the flight is oined with other of such flights in acontinuous belt to form the conveyer. In its preferred construction, theflight consists of an angle iron bar embodyin the base, or horizontalflange 4c and a vertica flange 5 that is braced from the base flange bythe two webs 6 near its ends.

At a point centrally of the flight, the flange 5 is cut away down to thebase flange to provide a recess 7 and continuing from the flange, at oneside of the recess and at right angles to the flange, is a web or flange8 serving as an abutment against which an attaching link 9 may seat, asshown best in Figure 2. The flange 8, for a purpose presently described,is provided adjacent the base flange, with two spaced apart apertures 10and 11, and above these, on the side adjacent the recess 7, has

a transverse lug 12 thereon that is spaced from and is parallel with thebase flange of the flight.

The link 9 has an open space 14 in its lower section which permits it tobe attached or detached from the end links of the chain sections 2 and 3and the ends, at opposite sides of this open space, are provided on oneside with laterally projecting lugs 15 and 16 that are adapted, when thelink is assembled with the flight, to fit within the openin s 10 and 11in the flange8. On its other side of the link are similarly projectinglugsl'? and 18 that are adapted to project'within notches of a clampingplate presently described.

After the link 9 has been connected with the chain sections 2 and 3, andhas been prop erly positioned with respect to the flange 8 of theflight, it is then clamped and locked by means of a plate 20 that seatsagainst the outer face of the link, as shown in Figure 3. One edge ofthe plate fits tightly between the link and edge of recess 7 and has aflange 21 abutting against the edge of the flange 5. In the lower edgeof the plate are notches 22 and 23 adapted to receive the lugs 17 and 18on the outer face of the link, and centrally of the plate is an opening25 adapted to register with a hole 26 through the in 12 and flange 8 toreceive a bolt 27 whereby the parts may b locked together.

Assuming that the parts are so constructed and are assembled asdescribed, should the flight for any reason need to be removed andreplaced, the bolt 27 is tirstreinoved so that plate 20 may be liftedout. The link 9 is then shifted outwardly to free the lugs 15 and 16from the openings 10 and 11 in flange 8 and to unseat it from about thelug 12 and it may then be lifted free of the flight.

If a new flight is inserted, the link S) is moved into recess 7 and itsupper and lower sections seated against the flange 8 along oppositesides of lug 12, with the lugs 15 and 16 on the link seated in theopenings 10 and 11. The plate 20 is then moved downwardly so that oneedge fits tightly between the link and edge of recess 7 and its twonotches 22 and 23 receiving the lugs 17 and 18. The bolt 27 is theninserted through openings 25 and 26 and by means of a nut threaded ontothe bolt all parts are clamped tightly together.

The construction, while permitting of ready assembly or disassembly ofparts, provides a very rigid and substantial construction. It alsopermits, due to the open link and the fact that it can be easily andreadily disconnected from the flight, the removal and replacing ofbroken chain sections between flights.

Such flights are especially suitable for use with conveyors in sawmills, mines, elevators, coaling stations, dredges, etc., and can bemade in various sizes in accordance with the purpose for which they areused.

Having thus described my invention, what I claim as new therein anddesire to secure by Letters-Patent, is:

1. The combination with adjacent sections of a conveyer chain belt, of aconveyer flight, an open chain link disconnectably joining the saidsections and serving as a part of the belt; said link having partsthereof adapted to engage in rigid interlocking relation with the bodyof the flight and means for retaining them in this relation.

2. The combination with a conveyor chain of a link in said chain havinga side opening whereby it may be detached and having lugs thereon and aconveycr flight provided with openings adapted to receive the said lugsto provide a rigid connection between the link and flight.

3. The combination with adjacent sections of a eonveyer chain, of. achain link joining the said sections and having a side opening wherebyit may be detached therefrom, and having lugs thereon at opposite sidesof the opening and a conveyer flight having apertures for receiving saidlugs to provide an interlocked connection and means for retaining theparts in this relation.

4. The combination with a conveyor chain, of a flight having atransverse flange thereon provided with spaced apertures, a chain linkadapted to be seated flatly against said flange and having an opening atone side whereby it is insertable in the chain to form-a part thereofand provided at opposite sides of the opening with laterally projectinglugs insertable into said flange openings, and means for securing thelink to the said flange.

5. A conveyer flight comprising a bar with a transverse flange havingspaced openin s therein, a chain link adapted to seat flatl against thesaid flange with its ends extended forwardly and rearwardly of theflight and having an opening in one side whereby, when detached from theflight, it is applicable to flight connecting sections of a convcyerchain, and having laterally projecting lugs thereon at opposite sides ofsaid opening applicable to said flange openings, :1. plate disposedagainst the link at the side opposite the flange and a bolt extendedthrough the plate and securing it to the flange.

6. A conveyer flight comprising an angle iron bar, one flange of whichis provided centrally with a recess, a flange formed trans versely ofthe bar at one side of the recess having two spaced openings therein, achain link disposed flatly against the apertured flange and extendedthrough said recess; said link having an opening in one side whereby itis removably applicable to the fli ht con: necting chain sections of aconveyor clt and provided at each side of the opening with lugs extendedlaterally from both sides of the link with those at one side rcmovablyinterlocked in the said openings of the transverse flange, and' aclamping plate overlying the outer side of the link having notchestherein for receiving the outwardly projecting lugs at that side of thelink and a bolt extended through the plate and transverse flange todetachably secure the parts together.

7. A conveyer flight comprising an angle iron bar having a verticalflange provided centrally with a recess and a flange formed transverselyof the bar at one side of the recess having a lug thereon spaced fromand parallel with the base flange and having two spaced apart openingstherein beneath the lug, a chain link disposed flatly a ainst theapertured flange and overthe said lug and extending through the flangerecess; said link having an opening in its lower section whereby it isremovably applicable to the connecting sections of a conveyer belt, andis provided at opposite sides of the opening with jecting lugs in thatside of the link and a bolt removably extended through the plate and 10clamping it against the link and transverse flange.

Signed at Tacoma, Pierce County, Wash ington, U. S. A., this 4th day ofApril, 1924.

REDMOND PANGBORN.

